Improvement in steam flue-cleaners



WQMW Patented Au g.29,1871,

PATENT OFFICE.

WILLIAM DOTY, OF GIROLEVILLE, OHIO.

IMPROVEMENT IN STEAM FLUE-CLEANERS.

Specification forming part of Letters Patent No. 118,596, dated August29, 1871.

To all whom it may concern:

Be it known that 1, WILLIAM DOTY, of Circle ville, in the county ofPickaway and State of Ohio, have invented a Steam Flue-Gleaner, of whichthe following is a specification:

My invention relates to that class of flue'cleaners in which jets ofsteam are used to efi'ect the purpose.

Figure 1 is aview of the cleaner divided through its center. Fig. 2shows the relation of the several orifices through which the steam jets.

A is a steam-pipe, which is extended to communicate with the upper partof a steam-boiler, and the lower end is secured into the sphere B, whichis held suspended near to and directly opposite the center of theboiler-fine at the rear end. The sphere is a hollow cast-iron globe,having an orifice at the top for the steam-supply pipe, orifices n and ofor steam-jets, and an orifice, s, for the escape of water which maycondense within the sphere. The orifice 0 is on a direct horizontal lineto the center, and about this is a series of orifices on direct line tothe center also, causing the steam-jets to diverge and sweep the surfaceof the fine, while the direct jet from the center orifice (see 0, Fig.2) sweeps the line of the soot. s is an orifice drilled from the underside into the orifice a, through which the water may escape whensufficiently cooled down to produce condensation ofth e steam, which mayescape through a supply-cock that is arranged in the pipe just outsideof the boiler. The object of the orifice s is to convey the water fromthe sphere just outside of the boiler-flue that the flue may not becomeoxidized and the soot' moistened, which would cause its adherence to thesurface of the flue. The relation of the sphere to the flue is such thatif water were carried out of the jetting orifice it would fall withinthe flue, to the detriment thereof. The angle of this orifice is suchthat the steam will not issue through it. The sphere being suspendednear the center of the boiler-flue and within the flue-space at the rearend of the boiler, it is kept at about a red heat, and therefore onlydry steam can issue from it at such times as the force of the steamwould be effective for cleaning the fiue.

On opening the stop-cock the steam passes through the pipe into thesphere and thence into the flue.

I claim as my invention The water-escape channel 8.

his WILLIAM DOTY.

m ark.

WVitnesses V. H. CLARK, B. PICKERING.

